Door locking mechanism



May 7, 1940. o. VELIE DOOR LOCKING MECHANISM Filed Nov. 1, 1938 I 2 $heets-Sheet 1 May 7, 1940. o. VELIE DOOR LOCKING MECHANISM Filed NOV. 1, 1938 2 Sheets$heet 2 may Patented May 7, 1940 2,199,7tli

Odell Velie,

South Bellingham, to Bellingham Iron Works, Inc., ham, Wash, a corporation Wash, assignor South Belling- Application November 1, 1938, Serial No. 238,266

8 Claims.

This invention relates to improvements in re"- to improvements in the apparatus disclosed in the T. W. Reid Patent torts and more particularly N0. 2,043,628 dated June 9, 1936.

- One of the objects of the invention is to provide door-locking means, all parts of which are arranged exteriorly of the retort where they may be seen at all times by the operator so that he can readily adjust and lubricate them. By arranging the locking elements outside the retort, they will not be subject to the steam and water Such steam and water has oil off bearings and the like if these parts are in the retort, and such oil imparts dirt to the cans undergoing treatment used in the retort. a tendency to wash the in the retort.

Another object is to supply a door mechanism for retorts, the parts of which are so arranged that the door can be opened slightly to permit water to leak or drain out before the door is fully opened.

A further object is to supply a retort having the retort and the door the door will always close or seal at the same place, even with slight wear in the hinges.

With the foregoing objects outlined and with other objects in view which will appear as the deinvention consists in the novel features hereinafter described, illustrated drawings, and more parguides on the body of so that scription proceeds, the

in the accompanying ticularly pointed out in the appended claims.

In the drawings:

Fig. l is a front elevation of the retortwith the door in closed position.

facilitate illustration. 7

Fig. 3 is an enlarged View of a detail. Referring to the drawings, 4

tioned patent.

The front end portion of the shell is provided 5 which is welded to the shell and forms with the latter, a groove for the reception of a packing or sealing ring 6. Brackets I (eight in number) are welded to the shell and ring 5 and project forwardly beyond Each bracket is provided with a slot 8 extending lengthwise of the shell and adapted to receive the outer end portion of a locking bar or bolt 9. Each bolt passes through a U-shaped guide ill having a cross bar I I that is connected by cylindrical legs l2 (Fig. 3) The shank of a plunger H exexternally with a metal ring the front end of the shell.

to the door l3.

Fig. 2 is an enlarged fragmentary sectional view of the same with certain partsremoved to (Fig. 2) designates the cylindrical shell of the retort which may be equipped with the parts shown in the above-menis urged into engagement with its complementary bolt by a coil spring l5 which surrounds the plunger. is provided with a screw it which impinges against the outer end portion of the bolt and is locked in position by a set screw l'l.

The door is formed of metal and has a domeshaped body which projects into the front end portion of the shell. The edge portion of the cover forms a circular flange it which extends toward the shell and cooperates with the sealing ring 6 to seal the closure when the door is in closed position.

As shown in Fig. 1, the shell is provided with stationary hinge elements l9 through which passes a vertical shaft 20 that is secured to the parts H] by set For adjusting purposes each bracket 1 screwsZl or the like. Hinge elements22 are secured to the door and are ro- Each of the elements 22 may be provided with 2.

grease fitting-2d for the application of lubricant to the hinges.

As best shown in Fig. 2, asleeve 24a projects 25 forwardly through thecentral portion of the door and is secured to the door by welding or the like. A lining sleeve 25 of any suitable metal is arranged in the sleeve 24a and secured in place by a pin 26.

A screw'z'l has an unthreaded cylindrical portion 28 rotatably mounted in the lining 25 and terminating in a head 29 which abuts against the inner end'of the liner. A cap plate 36 is secured to a ring 3! secured to the inner surface of the door at the inner end of the sleeve '25 by means of screws 32 or the like, and a gasket 33 seals the joints between the parts 36 and 5! to prevent any leakage of lubricant into the door through the swivel joint or mounting of the screw 27. A grease fitting 34 is preferably con: nected to the sleeves 24a and 25 and is used in introducing a lubricant-into a groove '35 of the sleeve 25 for the purpose of lubrication.

The outer end portion of the screw is also unthreaded as shown at 36 and forms a support for the hub 31 of a hand wheel 38. A washer 39 is secured to the outer end portion of the screw by a set screw 40 and functionsto prevent endwise movement of the hand wheel. Rotation of the wheel relatively to the part 35 is prevented by a key iL'which is arranged between the partsBfi and 31 and is rele asably held in position by a set A nut 43 is in threaded engagement with the screw and has a flange 44 that is secured by any suitable means such as screws 45, to an annular 50. Each connector has a second shank 5| arranged at right angles to its shank 4! and such shank 5| extends loosely through the inner end of one of the locking bolts 9 and is secured to the latter by a cotter pin 52 or the like.

A hand lever 53 is disc 46 and its swinging movement about the connected to the door and the latter being secured to one of the bolts. The hand lever 53 is positioned between the hand Wheel 38 and the bolts.

When the door is open the cans are introduced into the retort above-mentioned patent, such cans are held in the door I 3 and to force the i8 into sealing ring 6.

During such closing operation, the screws I 6 are adjusted if necessary and then locked in position by the screws I1.

After the door tents of the cans ly opened by manipulating the hand wheel 38, which will cause the flange l8 to move away from the packing ring 6.

brackets 7. completely.

While I have disclosed What I deem to be a my mechanism,

spirit of the invention as comprehended within the scope of the appended claims.

What I claim and desire to secure by Letters Patent is:

l 1. In a structure of mg, a door for closing the type having an opensuch engagement with the screw, bolts arranged exteriorly of the door, having their inner ends operatively connected to the nut and engageab'le at their outer ends with said brackets, and means functioning independently of the first-mentioned for sealing said head to prevent lubricant from the sleeve being discharged at the head end of the screw.

5. In a structure of the type having an openmg, a door for closing such opening and brackets in turning said screw, a nut having threaded engagement with the screw, bolts arranged exteriorly of the door, having their inner ends operatively connected to the nut and engageable at their outer ends with said brackets, and a hand lever for turning said nut relatively to the screw independently of saidmeans, and thereby moving the inner ends of said bolts toward or away from said door.

6. In a structure of the type having an opening, a door for closing such opening and brackets secured to the structure and arranged in spaced relation about the edge portion of the door, the improvement comprising a screw, a swivel joint connecting the screw to the door, a hand wheel for use in turning said screw, a nut having threaded engagement with the screw, bolts arranged exteriorly of the door, having their inner ends operatively connected to the nut and engageable at their outer ends with said brackets, and means for turning said nut relatively to the screw independently of said hand wheel, and thereby moving the inner ends of said bolts toward or away from said door. 1

7. In a structure of the type having an opening, a substantially circular door for closing said opening, and a series of spaced brackets secured to the structure and having slotted portions arranged exteriorly of the structure adjacent to the edge of the door, the improvement comprising a screw arranged exteriorly of the door, a swivel connection joining the inner end of the screw to the central portion of the door, a hand wheel rigidly connected to the outer end portion of the screw, a nut having threaded engagement with the screw, a series of angular connecting elements, each connecting element having a pair of shanks and the shanks of each pair being at angles to one another, one shank of each connector being pivotally connected to said nut, and a series of bolts arranged exteriorly of the door of shanks and the shanks of angles to one another, one shank of each con of the brackets for locking and having their inner ends pivotally connected to the other shanks of said connecting elements,

means on the door for guiding said bolts, each bolt being adapted to extend into a slot ofone of the brackets for locking the door in closed position, and manually operated means functioning independently of said hand wheel for turning said nut relatively to said screw, and thereby moving the inner ends of said bolts toward or away from said door.

8. In a structure of the type having an opening, a substantially circular door for closing said opening, and a series of spaced brackets secured to the structure and having slotted portions arranged exteriorly of the structure adjacent to the edge of the door, the improvement comprising a screw arranged exteriorly of the door, a swivel connection joining the inner end of the screw to the central portion of the door, a hand wheel rigidly connected to the outer end portion of the screw, a nut having threaded engagement with the screw, a series of angular connecting elements, each connecting element having a pair each pair being at nector being pivotally connected to said nut, and a series of bolts arranged exteriorly of the door and having their inner ends pivotally connected to the other shanks of said connecting elements, means on the door for bolt being adapted to extend into a slot of one the door in closed position, and manually operated means functioning independently of said hand wheel for turning said nutrelatively to said screw, moving the inner ends of said bolts toward or away from said door, the last-mentioned means comprising a hand lever arranged between the hand wheel and said bolts.

, ODELL VELIE.

guiding said bolts, each and thereby 

